JPH11110955A - Device and method for recording control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability for deleting a plurality of programs in a recording device for recording audio information or the like by using a program as a unit. SOLUTION: For music recorded in an MD(minidisk) 41 in an MD recorder 7, information such as identification information or the like regarding each music is reproduced, for example during loading of the MD 41 or the like, and stored in a memory part 50. This identification information is displayed via a GUI 66 in a personal computer 1, and by referring to a displayed content, a user specifies a plurality of music pieces to be deleted by a mouse or the like. Then, by re-arraying the specified music pieces in the order of numbers, a selected music arrangement is generated. Each selected music is deleted along this selected music arrangement, in other words, bits of identification information or the like in the memory part 50 are rewritten in sequence. The necessity of changing a music number for each deletion of each selected music is eliminated, and correspondence between a music number and a music title is always identical to specification by the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital information recording apparatus capable of recording and erasing digital information signals such as audio information and video information in units of a program. The present invention relates to an apparatus and a method for controlling recording.

[0002]

2. Description of the Related Art Digital information signal recording devices include:
There are various things. In the case of a digital audio signal, an MD recorder using an MD (mini-disc), which is a kind of magneto-optical disc, as an information recording medium,
A DAT (digital audio tape recorder) using a digital audio tape as an information recording medium is known. Such a digital information signal recording apparatus performs an erasing process, that is, a process of rewriting identification information and link information of a recorded program so that a predetermined one of the recorded programs is not handled as an object of reproduction or the like. Often it also has a function.

[0003]

Generally, a program number is assigned to a recorded program in the order of, for example, recording date and time, and the user designates the program number so that the program can be processed or reproduced. You have been made to choose the program you want. When the above-described erasing process is completed for one program, it is treated as if there is no such one program in the subsequent process, and therefore, for each program having a program number after the program number of the one program, the program number The program number is changed, for example, is decreased by one.

For this reason, when performing the erasing process on a plurality of programs, after the erasing process on one program is performed, the correspondence between the program number and the identification information such as the program name is determined by the user. It may not be the same as when you went. Therefore, before executing the erasing process, the user confirms whether or not the program can be actually erased by referring to the display of the identification information on the program via a monitor attached to the input operation means. At this time, the user may feel uncomfortable or uneasy, and as a result, the operability in the erasing process may be impaired.

Accordingly, it is an object of the present invention to provide a recording control apparatus and method capable of improving the operability of an operation relating to an erasing process.

[0006]

According to a first aspect of the present invention, there is provided a recording control apparatus for controlling a digital information signal recording apparatus capable of recording and editing a digital information signal in a program unit. A recording control device having a function of erasing individual programs on a management area.

According to a second aspect of the present invention, there is provided a recording control device for erasing a plurality of programs recorded in a digital information recording device, wherein the first input specifies a plurality of programs to be erased. And a first array for arranging the program numbers of a plurality of programs related to the first input in the order specified by each program in the first input, and rearranging the first array Means for converting to a second array arranged in descending order of program numbers, and whether or not to perform processing relating to execution of erasure sequentially for each of the plurality of programs according to the second array. A record input device for receiving the second input, and performing a predetermined process including a determination as to whether or not a process related to execution of erasure is to be performed in accordance with the second input. .

According to a ninth aspect of the present invention, there is provided a recording control method for controlling a digital information signal recording device capable of recording and editing a digital information signal in program units, wherein a plurality of arbitrarily selected programs are stored in a management area. A recording control method comprising the step of erasing above.

According to a tenth aspect of the present invention, in a recording control method for erasing a plurality of programs recorded on an information recording medium in a digital information recording apparatus, a plurality of programs to be erased are designated. Receiving a first input, arranging the program numbers of a plurality of programs related to the first input in the order specified by each program in the first input, and generating a first array; Rearranging the array of the second program into a second array arranged in ascending program number order;
According to the sequence of, for each of a plurality of programs,
Receiving a second determination as to whether or not to perform a process related to the execution of the erasure, in accordance with a second input;
A recording control method includes performing a predetermined process including a determination as to whether or not a process related to execution of erasure is permitted.

According to the above-described invention, an erasing process can be performed on a plurality of programs.

[0011] Further, a plurality of programs are subjected to processing relating to the execution of erasure in order from the program number having the largest number. For this reason, even if the program number is changed accompanying the erasing process for one program, the effect of the change can be prevented from reaching the program number of the program to be subsequently erased. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of an audio recording / reproducing system including a personal computer 1 as a recording / reproducing control device according to the present invention. The personal computer 1 is a hard disk or a CD-ROM (Compact Disc-Read Only M
emory) Body 2 with standard configuration including drive etc.
And a monitor 3, a keyboard 4 and a mouse 5
And the like. And, for example, CD-R
When the application software stored in the OM is installed on the hard disk of the main body 2, the application software functions as a recording / reproduction control device of the audio recording / reproduction system.

The personal computer 1 controls an MD recorder 7 as a digital audio signal recording device, and further uses an amplifier 8. PC 1 and
The amplifier 8 and the MD recorder 7 are connected by a control signal transmission line (shown by a solid line) in a chain. The operation of each device is controlled by a control signal transmitted via the control signal transmission path. The control signal is sent from the personal computer 1. However, the operation of each device can be controlled by an operation unit of each device or a remote control system.

A matching converter 10 is provided between the signal transmission line of the personal computer 1 and the signal transmission line of the audio system to absorb the difference in the form of the control signal. RS-232C, SC between the personal computer 1 and the converter 10
Connected by a signal transmission path such as SI,
On the side of the audio equipment including the D recorder 7, a signal transmission path for controlling the audio equipment is arranged.

In FIG. 1, the transmission path of an audio signal (analog or digital) is indicated by a broken line.
The reproduction audio signal of the MD recorder 7 is input to the amplifier 8. The audio signal selected by the amplifier 8 is reproduced by the speaker 9.

FIG. 1 shows only an example of a system to which the present invention can be applied. For example, using an AV controller, a plurality of AV devices (not only audio devices but also digital VC
R may be included, and the present invention can be applied to a system in which a personal computer is connected to an AV controller. In addition, if IEEE 1394 is used as an interface between the personal computer 1 and audio equipment such as the MD recorder 7, it is not necessary to separate the transmission path between the digital information signal and the control signal.

The control signal transmission path is bidirectional, and the operation of each device (recording operation, reproduction operation, etc.) is placed on this transmission path.
Along with data and clocks for operation control
Identification information and the like corresponding to the program (song) and the MD (medium) are transmitted. The identification information corresponding to the MD 41 is, for example, a disc name given to the MD 41. Also, M
A typical example of identification information corresponding to a program recorded in D41 is character information indicating a song title. Such identification information, together with the link information, is stored in a management area provided on the MD 41 separately from an information signal recording area for recording a digital information signal in units of a program.
Recorded as TOC (User Table Of Content). U
The recording format of -TOC will be described later.

Character information such as a song title is useful for identifying each song when displayed on the display 3 of the personal computer 1. However, any information other than the character information can be used as long as the user can identify the MD and the song and can use the MD and the song to select a desired MD and song to be subjected to processing such as reproduction.

In one embodiment of the present invention, as described later, a predetermined window related to an operation desired by the user of the display 3 of the personal computer 1 is displayed. For example, a window 11 is displayed when an operation of selecting a song to be subjected to a predetermined operation such as reproduction or editing is performed. The window 11 displays the identification information such as the disc name and the song name in the form of a list as described above. The selection operation is performed by the user operating the mouse 5 with reference to the window 11. Further, by clicking an icon, a button, or the like on the screen, it is possible to control the operation of the MD recorder 7 and the amplifier 8 (for example, the operation related to reproduction). Such control includes editing of each music piece (for example, combining two music pieces).

A graphical view and operation method when the user uses the display 3 such as a window function, an MD and song selection function using the mouse 5, and an operation control function using an icon and a mouse will be described later. It is provided by software of a GUI (Graphical User Interface) 66. Here, the mouse 5 is used, but as a device operated by the user, a trackball, a cursor key, a rotary knob, and the like can be used in addition to the mouse.

Next, a more detailed configuration of each component in the system will be described with reference to FIG. An MD recorder 7 is connected to the personal computer 1. MD recorder 7
Is housed in the jacket 40 and the spindle motor 4
Magnetic head 4 with respect to MD 41 rotated by
The digital audio signal is recorded by the optical block 3a and the optical block 43b. Of course, the MD recorder 7 has a playback function that can play back the MD 41.
However, in the configuration shown in FIG. 2, the details of the configuration relating to the reproduction function of the MD recorder 7 are omitted.

The input terminal 44 is a terminal for supplying an analog audio signal (usually a stereo signal) from a reproduction output terminal of a CD player, for example. Input terminal 4
When an audio signal is supplied via the A / D converter 4, the audio signal is digitized by the A / D converter 45 and supplied to the signal processing circuit 46. The signal processing circuit 46 performs processing of a modified DCT (referred to as ATRAC) for compressing the digital audio signal, processing of error correction coding, processing of formatting into a sector structure, and EFM modulation (Eight to Fourteen Modulation). And so on for recording.

The recording signal from the signal processing circuit 46 is supplied to the magnetic head 43a via the amplifier 47. A digital audio signal is recorded on the MD 41 by the magnetic head 43a and the optical block 43b. A wobbling groove is formed in the MD 41 in advance by embossing or the like. Clock information, servo information for servo of the spindle motor 42, and address information are inserted as wobbling information of the wobbling groove. Data is recorded in the groove. The reproduction signal of the wobbling groove is transmitted from the optical block 43b to the control unit 48.
Supplied to The control unit 48 extracts clock information, servo information, and address information. The data on the MD 41 is reproduced by the optical block 43b.

A servo circuit 49 is connected to the control unit 48. The spindle motor 4 is controlled by the servo circuit 49.
The servo for 2 is performed. Also, the magnetic head 43a
The focus, tracking, and sled servo of the pickup including the optical block 43b are performed. At the time of recording, a position (address) to be recorded is specified using an address included in the wobbling information.
The servo circuit 49 controls the magnetic head 43 so as to perform recording at a specified address given from the control block 48.
a and the position of the optical block 43b. In addition,
In the MD 41, data is recorded / reproduced in units called clusters.

For the control unit 48, for example, a DRAM
Is connected. The memory unit 50 stores information necessary for operations such as recording / reproduction and editing, such as identification information and link information relating to a program recorded in the MD 41 and reproduced from the management area of the MD 41 when the MD 41 is mounted, for example. Is stored. Also,
Each time such information is changed by an operation performed by the user or the like, a rewriting process is performed on the memory unit 50 each time. As a memory unit having the above functions, D
A predetermined storage means such as RAM, semiconductor memory
Or at a predetermined position in the transmission path separately from the MD recorder 7 and the personal computer 1.

Further, an interface 52 is connected to the control unit 48. The interface 52 is connected to a control signal input / output terminal 54. This terminal 54
It is connected to a control signal input / output terminal 61 of the personal computer 1 via the converter 10. Transmission and reception of control signals, signals related to identification information, and the like between the control unit 48 of the MD recorder 7 and the personal computer 1 are performed via the converter 10 and the interface 52. Thus, the control unit 48 of the MD recorder 7
The identification signal or the like supplied from the
It is stored in a predetermined storage means such as M63.

The personal computer 1 includes a CPU 62, a RAM 63,
ROM 64, hard disk drive 65, GUI 66
And an interface 67. A control signal input / output terminal 61 is derived from the interface 67, and transmits and receives a control signal, an identification signal, and the like to and from the outside. The RAM 63 is a working memory, and the ROM 64
Is a memory in which programs and the like are stored.

The GUI 66 includes hardware for the display 3, the keyboard 4, and the mouse 5 in FIG.
It includes both a graphic function for displaying windows, icons, and the like on the screen of the display 3 and software for providing an operation function for selecting and determining these with the keyboard 4 or the mouse 5. In the system shown in FIG. 1, a personal computer 1 presents a window 1 for presenting identification information of a plurality of songs recorded on an MD recorder 7.
1 is displayed, and a tune to be subjected to predetermined processing such as reproduction, combination, and erasure is selected from the presented ones.

The window 11 is schematically shown in FIG. The window 11 has a disk icon 1 for identifying the MD 41 mounted on the MD recorder 7.
1a (in FIG. 3, the identification information of A is shown) and M
And a song name identification display (hatched portion) 11b in which identification information of a plurality of songs stored in D41 is arranged in order from the top.

For example, the first song to be erased,
To select the second song and the fourth song,
For example, by operating the mouse 5, the cursor may be positioned at the identification information corresponding to these songs. In FIG. 3, designated columns are shown with double oblique lines. On the actual display screen, the column corresponding to the designated song is displayed to the user by changing its display color or blinking. In this way, the operation for designating the music to be combined can be simplified.

The present invention relates to the management of the music number of the music piece selected as the music piece to be erased (hereinafter referred to as a selected music piece). An example of a process related to erasure according to an embodiment of the present invention will be described with reference to a flowchart of FIG.

In step S301, the above-described selection operation is performed. In the subsequent step S302,
The selected music pieces are arranged in the order input in step S301. Here, the selected song array that stores the song numbers of the selected songs is denoted as erase []. In [], a number indicating the input order is entered. For example, when the second, fourth and first songs are selected in this order, erase

[0]
= 2, erase [1] = 4 and erase [2] =
It is set to 1. In general, when n pieces of selected music are selected, [] includes integers 0, 1,..., N−1 in order.

When the input and arrangement of the selected music pieces are completed in steps S301 and S302, processing relating to the execution of erasure is performed. As described later, such processing is performed in steps S305 to S309, and such processing is repeated by the number of selected songs. Therefore, it is necessary to control the repetition correctly, but i is used as a variable for such control.

The condition determination based on the variable i will be described below. In step S303, i = 0 is set, and the value of i is initialized. Then, 1 is added to the value of i in step S310 performed at the end of the process (steps S305 to S309) repeated for the number of selected songs. As a result, the value of i is always equal to the number of times the processing of steps S305 to S309 is repeated. That is, for example, when three selected songs are selected in step S301, steps S305 to S30 are performed for the first selected song.
When the processing up to 9 has been performed, the subsequent step S3
According to 10, the value of i becomes as follows.

I = 0 + 1 = 1 Further, for the second selected music piece, steps S305 to S305
When the processing up to 309 is performed, the value of i becomes as follows in step S301 thereafter.

I = 1 + 1 + 1 = 2 As described above, the number of times equal to the number of selected songs selected in step S301 is repeated in steps S305 to S3.
When the repetition of the processing up to 10 is completed, the value of i is equal to the number of selected songs. Before that, since the value of i is always smaller than the number of selected pieces of music, i <(the number of selected pieces of music) is set as a condition for performing steps S305 to S310 again, so that step S305 is performed.
The number of repetitions of the procedure from S310 to S310 and the number of selected songs can always be made equal. As a step of determining this condition, step S304 is performed prior to the processing of steps S305 to S310. Therefore, if it is determined in step S304 that the condition of i <(the number of selected songs) is not satisfied, the flow shifts to step S311 to end the process related to erasure.

On the other hand, if it is determined in step S304 that the condition of i <(number of selected songs) is satisfied, the processing in steps S305 to S310 is performed. First, step S305 is a step for the user to confirm whether or not the selected song to be erased from now (that is, the selected song in which the song number is stored in erase [i]) can be erased. is there.

In step S305, actually, the GUI
66 (that is, by using the monitor 3 of the personal computer 1) to display identification information such as a song number and a song name of a selected song to be erased from now on, and input by the user for the display. (Input indicating whether or not execution of erasing is possible) is received via the GUI 66 (that is, via the mouse 5 or the like).

If "NO" in the step S305, the erasure is not executed, and the process shifts to a step S310. Then, after 1 is added to i, step S304 is performed.
Then, the processing for the next selected music piece is performed. On the other hand, if “YES” is determined in the step S305,
The process proceeds to step S306, and the erasure is executed for the selected song whose song number is stored in erase [i] corresponding to the value of i at that time.

Here, executing the erasing means performing a process of rewriting the contents of the U-TOC so that the music to be erased is treated as being not present in the processing such as reproduction and editing. This does not mean that the data of the tune to be erased is actually magneto-optically erased in the signal recording area on the MD 41. Further, by such a rewriting process, the portion where the data of the song targeted for erasure is located is treated as being able to overwrite the data of the song targeted for the new recording process. .

The U-TOC is read from the management area and stored in the memory 50 when the MD 41 is mounted, for example, and is referred to in subsequent operations such as reproduction and editing. A rewrite process directly corresponding to the execution of the erasure or the like is performed on the contents stored in the memory 50. Also, for example, MD4
At a predetermined timing, such as at the time of the ejection of 1, the magneto-optical rewriting process is performed on the U-TOC in the management area of the MD 41 according to the stored contents of the rewritten memory 50. In addition, a display for inquiring the user as to whether or not such rewriting is to be performed on the management area on the MD 41 may be presented so that the user can select the rewriting.

As described above, the tune to be erased is treated as not present in the subsequent processing such as reproduction, etc., so that in step S307, the tunes following the tune number of the tune to be erased are executed. The song number is changed. Specifically, a process is performed such that the corresponding music number is decreased by one, for example. Such processing is also performed as U-TOC rewriting.

Due to the change of the music number, the correspondence between the selected music indicated by the selected music arrangement, the U-TOC identification information, the link information and the like becomes incorrect, and the music unintended by the user may be erased. . Therefore, a process for keeping such correspondence correctly is performed as follows in accordance with the change of the music number. First, in step S308, it is confirmed whether or not there is a selected song having a song number within the range in which the song number has been changed among the selected songs that have not been erased at that time. If it is determined that there is a corresponding selected song, the process proceeds to step S309, and the content of the selected song array is changed. On the other hand, step S
If it is determined in 308 that there is no corresponding selected song, the process directly proceeds to step S310. Then, after 1 is added to i, the process proceeds to step S304, and the process for the next selected music is performed.

Steps S308 and S309 are described as an example of the above-mentioned selected music piece (erase).

[0] = 2, e
A detailed description will be given in accordance with case [1] = 4 and case [2] = 1). First, the first step S30
4 is performed, and the first selected tune having the tune number of 2, ie, erase

Step S for [0] = 2
When the processing up to 306 is completed, the music number has not been changed, and the selected music array correctly corresponds to the music number. Thereafter, the music number is changed in step S307. That is, it is assumed that there is no selected song corresponding to the song number 2 before the change, and thus the song numbers 3, 4, 5 before the change.
.. Are changed to 2, 3, 4,.

By such a change, there is a possibility that the selected music arrangement does not correspond to the music number correctly, and an erroneous object is erased. For example, if the processing after step S304 is performed for the second time in correspondence with the arrangement of erase [1] = 4 performed in step S302, the selected music piece whose music number is 4 after the change of the music number (That is, at the time before the change of the music number such as when the step S302 is performed, the selected music whose music number is 5) is erased.

However, since only the music number after the original music number 2 is changed, the music number is changed.
Selected song array erase [2] = 1 for the selected song
Correctly corresponds to the song number after the change. In this way, for a selected song having a song number earlier than the song number before the change, there is no problem that the selected song array does not correctly correspond to the song number.

Therefore, in order to confirm whether or not there is a selected song in which the selected song array does not correctly correspond to the song number, step S3 is performed.
08 is performed. From the above description relating to the correspondence between the selected song array and the song number, as step S308, the content of the selected song array that has not yet been erased at that time (in the above example, erase [ 1]
= 4 and erase [2] = 1), there is one having a value larger than the music number (2 in the above example) of the selected music that has been targeted for erasure immediately before or not. It can be seen that the above-mentioned confirmation should be performed by a method such as checking the above. In this way, in the above example, erase [1] = 4 corresponds to the case where the selected music arrangement does not correspond to the music number correctly.
A confirmation result is obtained that [2] = 1 does not apply.

With reference to the confirmation result in step S308, the selected music arrangement is changed in step S309. That is, in the above example, erase
By changing [1] = 4 to erase [1] = 3, it is possible to make the selected music arrangement correctly correspond to the changed music number.

On the other hand, if it is determined in step S308 that there is no such thing that the selected music arrangement does not correctly correspond to the music number, it is not necessary to change the selected music arrangement.
As described above, step S309 is not performed, and the process immediately proceeds to step S310.

In the above-described example of the processing, there are the following problems. The display in step S305 is 2
During the subsequent and subsequent repetition processing, the selection is made in accordance with the changed selected music arrangement. Therefore, step S3
At 05, a song number different from that input by the user in step S301 is displayed, making it difficult for the user to confirm. That is, in the above-described example of the selected song, the second selected song whose song number was 4 at the time of selection (erased [1] = 4 in step S302) is used during the first repetition process. Step S
Erase by changing the selected song arrangement by 309
[1] = 3 is changed.

For this reason, in step S305 during the second and subsequent repetition processing, a message to confirm "whether or not to erase song number 3" is displayed, so that the song is selected as the second selected song. For the user who selected number 4,
There is a risk that judgment will be distressed. If the song name and the like are displayed together with the song number, the same song name and the like selected in step S301 are displayed, so that it is possible to temporarily avoid the user from being in a poor judgment. Is displaced, so that there is a possibility that a feeling of strangeness or anxiety may occur.

To address this problem, step S3
At 05, the influence of the change of the selected music arrangement may be eliminated, and the music number at the time selected at step S301 may be displayed. However, in order to perform such display, it is necessary to always memorize the correspondence of the song numbers before and after the change of the selected song arrangement, and to grasp the entire picture of the change of the selected song arrangement, which requires complicated processing. Need to do. In particular, when the number of selected songs is large, the complexity of such processing increases, and a complicated circuit configuration or software is required.

As described above, according to the present invention, the change of the music number made in accordance with the erasure of one music does not affect the erasing process for another selected music to be erased thereafter. It solves a problem. According to the embodiment of the present invention, as a process related to erasing, a process as shown in a flowchart of FIG. 5 is performed instead of the above-described general process. Steps S401 and S402
The input and arrangement of the selected pieces of music performed in are the same as steps S301 and S302 in FIG.

Next, in step S412, the selected music pieces are rearranged in descending order of music number. Thereafter, the repetition processing of step S403 and subsequent steps relating to erasure is performed. Steps S403 to S407 are the same steps as steps S303 to S307 in FIG. That is, in step S403, the variable i for managing repetition
Is initialized, and the process proceeds to step S405 with reference to the value of i in step S404 (that is, depending on whether i is smaller than the number of selected songs) or to step S411 to end the repetitive processing. judge. In addition, in step S406, erasure is performed (step S3 in FIG. 4).
U-TOC is rewritten in the same manner as in step S <b> 06), and in step S <b> 407, the music numbers after the music number of the selected music targeted in the immediately preceding step S <b> 406 are changed.

Here, since the arrangement is rearranged in the order of the music numbers in step S412, the selected music pieces to be erased later than the selected music pieces to be erased in the immediately preceding step S406. The song number is always small. Therefore, the change of the music number in step S407 does not always affect the music number of the selected music to be deleted thereafter.

That is, for example, when the second, fourth, and first selected songs are selected in this order in step S401, in step S402, erase

[0] = 2, erase [1] = 4 and erase
[2] = 1. Next, in step S412, erase '

[0] = 4, erase ′ [1] =
2 and erase ′ [2] = 1, and the array is rearranged. However, the rearranged sequence is referred to as erase ′ [].

Then, erase '

[0] = 4, era
se ′ [1] = 2 and erase ′ [2] = 1 are subjected to steps S405, S406 and S407 in this order. First, as the first process, erase '

Steps S405 and S406 are performed for [0] = 4. After that, the music numbers are rearranged in step S407. This rearrangement itself is performed in step S in FIG.
The process is performed in the same manner as in step 307, and the song numbers of the selected song targeted for step S406 immediately after song number 4 are sequentially changed. That is, the track numbers 5, 6, 7,.
It is changed to 5, 6, ....

Thereafter, the second and subsequent steps S405,
The selected music targeted for S406 and S407 is er
Since ase '[1] = 2 and erase' [2] = 1, tune numbers 5, 6, 7...
... and not affected by the change. As described above, the song numbers whose song numbers are changed as a result of the step S407 being performed by the rearrangement in the step S412 (that is, the song numbers after the song number targeted for processing in the immediately preceding step S406) In this case, the music number of the selected music to be erased thereafter may not be included.

Since the above is also true in the case where the selected songs are selected in an arbitrary input order and number in step S401, it is necessary to change the selected song array erase '[] by performing step S412. Can be eliminated. Therefore, in the flowchart of FIG. 5 used in the embodiment of the present invention, steps corresponding to steps S308 and S309 in FIG. 4 are not performed.

Since the selected music arrangement is not changed in this way, in step S405 for confirming the selected music to be erased, the music number at the time of selection of the selected music by the user (step S401) is always displayed as it is. You. For this reason, the confirmation process in step S405 can be made clearer.

When the erasing process and the rearranging process are executed in this manner, a control signal and a signal relating to identification information and the like are transmitted from the personal computer 1 to the MD recorder 7 via the control signal transmission line. , As described above, M
A rewriting process corresponding to the erasing and rearranging process is performed on the memory 50 in the D recorder 7.

The management area of the MD 41 will be described below. The management area has a U-TOC area and a P-TOC area. The inner circumferential side of the magneto-optical disk medium on the MD 41 where the temporal recording is possible is a U-TOC in which the U-TOC is recorded.
-TOC area. By the way, the outside is an information signal recording area. The U-TOC is, as described later, catalog information related to each program recorded in the information signal recording area. In addition, P-
The TOC is recorded in advance as pre-pits. PT
The OC includes a start address and an end address of each song on the disc, a track name which is the name of the song,
A disc name, which is the name of the disc, is recorded.

The U-TOC area is composed of, for example, 32 sectors. Hereinafter, sector 0, sector 1, sector 2, and sector 4 will be described. Sector 3 and sector 5 to sector 32 are extended areas and are not used at this stage. First, in sector 0, the start address, end address, copy protection information, emphasis information, and the like of each program are managed.

FIG. 6 shows an example of the configuration of sector 0. This sector 0 and the later-described sectors 1, 2 and 4
Have a size of 2352 bytes, and have a configuration in which 588 4-byte slot units are arranged. Numbers 0 to 58 are used to distinguish the 4-byte slot units.
7 is attached. Following the header, clusters H and L indicating a predetermined address position, a maker code and a model code indicating the manufacturer and model of the disc, and Firs indicating the first and last program numbers.
The tTNO and LastTNO, the sector use status, the disk serial number, the disk ID, and the like are recorded in order.

A P-DFA indicating the head position of a slot for storing information relating to the position of a defect occurring on the MD 41.
(Pointer for Defective Area), P-EMPTY (Pointer for Empty slot) indicating the use status of the slot, and P-FRA indicating the head position of the slot for managing the recordable area.
(Pointer for FReely Area) and P-TNO1, indicating the start position of the slot corresponding to each program number.
P-TNO2... Correspondence table instruction data section composed of P-TNO255 is recorded.

In the numbers 78 to 587, 255 slots are provided for storing information relating to the position of a defect occurring on the disk. Each slot is composed of 4 bytes, and one slot manages a start address, an end address, a track mode, and link information.

By the way, the MD recorder 7 does not always need to sequentially record data in the information signal recording area of the MD 41, and can also correctly reproduce data discretely recorded on the MD 41. Things. To correctly connect discretely recorded data, the P-FRA in sector 0 of the U-TOC described above is used.
Will be described with reference to FIG. FIG.
This is an example showing a case where 03h (h means hexadecimal) is recorded in -FRA. In this case, first, as shown in FIG. 7A, the slot 03h is accessed. The start address and end address data recorded in the slot 03h indicate the start address and end address of one part recorded on the disk.

The link information recorded in the slot 03h indicates the address of the slot to be followed. In FIG. 7A, such an address is 18h. Therefore, the slot 18h is accessed as shown in FIG. 7B. Since the link information recorded in the slot 18h indicates that the address of the slot to be followed is 1Fh (FIG. 7B), the slot 1Fh is further accessed (FIG. 7C). Then, slot 2Bh is accessed according to the link information of slot 1Fh (FIG. 7).
D), and the slot E3h is accessed according to the link information of the slot 2Bh (FIG. 7E). In this way, the link information is successively followed until null (that is, 00h) appears as the link information.

By following the link information in this manner, the addresses of data discretely recorded on the MD 41 are sequentially recognized. By controlling the position of the optical block 43b and sequentially accessing these addresses on the MD 41, the discretely recorded data is connected,
It can be handled as an object of processing such as reproduction and editing as one program.

The above description relates to the processing of connecting discretely recorded data with reference to the P-FRA. However, P-DFA, P-EMPTY, P-TNO
1, P-TNO2... P-TNO 255 can also be used to connect discretely recorded data. Although the above example deals with a program discretely recorded in five parts, generally, in order to perform processing such as reproduction and editing on an arbitrary program, the U-TOC It is necessary to refer to sector 0.
Therefore, in the erasing process, the process of treating a predetermined program as having no program includes the process of rewriting the contents of sector 0 of the U-TOC.

Next, in sector 1 of the U-TOC area, the title of each program and the title of the entire MD 41 are managed. Here, the title of the entire MD 41 is information such as an album title and a player name when the recorded program is audio data, and the title of each program corresponds to a song name and the like. FIG.
1 shows an example of the configuration of TOC sector 1.

[0072] character information of each program, the corresponding table instruction data P-TNA _X (X is 1 to 255) is recorded in the character table of the slot indicated by, if the number of characters is large, the link information Are used to connect a plurality of slots for recording. Also, this U
-In the TOC sector 1, the titles of alphabets that are mainly input in English are managed. However, when a katakana input is instructed by the user, a special code "@" is automatically generated and is managed in the sector 1 around alphabetical characters. In such a case, the alphabet surrounded by the special code "@" is converted into katakana based on the conversion table and displayed. According to the conversion table, for example, the character {a} is converted to katakana.

FIG. 9 shows an example of the sector 2. The sector 2 manages the recording date and time of each program recorded in the program area 47. An example of the sector 4 is shown in FIG. In sector 4, program area 4
The title of each program recorded in 7 is managed in kanji, hiragana, and katakana.

In the above-described embodiment of the present invention, the MD is used as the information recording medium.
Other types of optical discs (for example, DV
The present invention can also be applied to a digital information recording and / or reproducing apparatus using a digital video disk (D), a magnetic tape, an optical tape, a semiconductor memory or the like. The digital information recorded on the information recording medium in units of a program is not limited to audio data, but may be video data or the like.

[0075]

As described above, according to the present invention, a plurality of programs recorded in a digital information recording apparatus are erased, and the program to be erased is subjected to processing such as reproduction. Prior to performing the process of rewriting the U-TOC so that it is treated as if it does not exist, the following process is performed. That is, a process of rearranging an array in which the program numbers of the programs selected as the erasure targets are arranged in the input order at the time of the selection operation in the descending order of the program numbers is performed.

Therefore, a plurality of programs can be subjected to the erasing process. Further, in the case of performing the process of rearranging the arrays, the erasing process can be performed in ascending order of the program number. By the way, in the erasing process, a change is made such that the program having a program number after the program number is reduced by one for the program that has been erased. Even if such a change is made, as described above, since the program is subjected to the erasing process in ascending order of the program number, the erasing process is subsequently performed by changing the program number accompanying the erasing process for one program. Does not change the program number of the program targeted for

For this reason, the array generated by the process of rearranging the program numbers in descending order can be used as it is throughout the erasing process for all the selected programs.

Therefore, it is performed as a part of the erasing process.
Display or the like for the user to confirm the program to be erased is performed based on the arrangement. For this reason, the correspondence between the identification information such as the name of the program when the user performs the selection operation and the program number can be always constant, and the user does not feel uncomfortable or uneasy at the time of confirmation. be able to. Therefore, it is possible to contribute to improving the operability of the operation related to the erasing process.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an entire system according to an embodiment of the present invention.

FIG. 2 is a block diagram for explaining a more detailed configuration of each component of one embodiment of the present invention.

FIG. 3 is a schematic diagram schematically illustrating a music selection operation according to an embodiment of the present invention.

FIG. 4 is a flowchart illustrating an example of a music erasing process according to an embodiment of the present invention.

FIG. 5 is a flowchart for explaining another example of the music erasing process according to the embodiment of the present invention.

FIG. 6 is a schematic diagram for explaining a data structure of sector 0 of U-TOC of MD.

FIG. 7 is a schematic diagram illustrating an example of processing based on link information of sector 0 of the U-TOC.

FIG. 8 is a schematic diagram illustrating the data structure of sector 1 of the U-TOC of the MD.

FIG. 9 is a schematic diagram illustrating the data structure of sector 2 of the U-TOC of the MD.

FIG. 10 is a schematic diagram illustrating a data structure of a sector 4 of the U-TOC of the MD.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... PC, 3 ... Display, 5 ... Mouse, 7 ... MD recorder, 11 ... Window at the time of selection operation, 11b ... Song name identification display, 41 ... M
D, 50: memory unit, 66: GUI

Claims (10)

[Claims] 1. A recording control device for controlling a digital information signal recording device capable of recording and editing a digital information signal in a program unit, wherein a function of erasing a plurality of arbitrarily selected programs on a management area. A recording control device comprising: 2. A recording control device for erasing a plurality of programs recorded in a digital information recording device, comprising: a first program for designating a plurality of programs to be erased;
And a first array for arranging the program numbers of the plurality of programs according to the first input in the order in which the programs are specified in the first input. Means for rearranging the array of the first program into a second array arranged in the descending order of the program number; and processing for sequentially executing erasure for each of the plurality of programs in accordance with the second array. Recording means for receiving a second input as to whether or not to perform the erasure, and performing a predetermined process including a determination as to whether or not to perform a process related to the execution of the erasure in accordance with the second input. Control device. 3. An information recording medium in a digital information recording apparatus according to claim 2, wherein the information recording medium includes an information signal recording area for recording a digital information signal for each program, and each program recorded in the information signal recording area. A recording control device having the management area for recording the identification information and the link information. 4. The recording control device according to claim 3, wherein the digital information recording device is connected to the digital information recording device via a control signal transmission path capable of transmitting a control signal bidirectionally. 5. The method according to claim 4, wherein the program designating means performs a first display for displaying the identification information reproduced from the information recording medium, and performs the first display with reference to the first display. GUI means for receiving an input of the first program, wherein the determination input means performs a second display for displaying identification information of the plurality of programs specified by the first input, and
Receiving the second input made with reference to the display of
A recording control device, which is an I means. 6. The digital information recording apparatus according to claim 4, further comprising: storage means for storing the identification information and the link information reproduced from the management area of the information recording medium; A recording control device for rewriting the contents of said storage means in response to processing relating to execution of erasure. 7. The control signal according to claim 4, wherein a control signal for instructing rewriting of the recorded content of the management area of the information recording medium is issued at a predetermined timing in response to the processing relating to the execution of the erasing. A recording control device further comprising means. 8. The communication device according to claim 4, wherein the identification information and the link information reproduced from a management area of the information recording medium in the digital information recording device are received via a control signal transmission path, and the received information is received. A recording control device, further comprising storage means for storing the identification information. 9. A recording control method for controlling a digital information signal recording apparatus capable of recording and editing a digital information signal in units of a program, wherein a plurality of arbitrarily selected programs are erased on a management area. A recording control method comprising: 10. A recording control method for erasing a plurality of programs recorded on an information recording medium in a digital information recording apparatus, wherein a plurality of programs to be erased are designated.
Receiving the input of the plurality of programs, arranging the program numbers of the plurality of programs according to the first input in the order specified by each program in the first input, and generating a first array; And rearranging the array of the plurality of programs into a second array in which the program numbers are arranged in descending order of the program number. Processing relating to the execution of erasure for each of the plurality of programs sequentially according to the second array Receiving a second determination as to whether or not to perform the erasure, and performing a predetermined process including a determination as to whether or not to perform an erasure according to the second input. .